Reduce the default buffering goal

Since we no longer clear ahead of the playhead, the only way to assure responsive visual upgrade is not to buffer too far ahead. Therefore our new default buffering goal is 10 seconds instead of 30 seconds. Manual testing using Chrome's network throttling feature has shown no increase in buffering rates, so 10 seconds seems to be enough for stable connections. For situations in which 10 seconds is not enough, the bufferingGoal setting can still be customized by the application. Closes #520 Change-Id: I248c1c93dd4cdd037e6e3ca12bb207ba54845836
shaka-project · Oct 25, 2016 · 1d9e574 · 1d9e574
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diff --git a/docs/tutorials/config.md b/docs/tutorials/config.md
@@ -44,7 +44,7 @@ player.getConfiguration();
      restrictions: Object
      streaming: Object
        bufferBehind: 30
-       bufferingGoal: 30
+       bufferingGoal: 10
        ignoreTextStreamFailures: false
        rebufferingGoal: 2
        retryParameters: Object

diff --git a/lib/player.js b/lib/player.js
@@ -1249,7 +1249,7 @@ shaka.Player.prototype.defaultConfig_ = function() {
     streaming: {
       retryParameters: shaka.net.NetworkingEngine.defaultRetryParameters(),
       rebufferingGoal: 2,
-      bufferingGoal: 30,
+      bufferingGoal: 10,
       bufferBehind: 30,
       ignoreTextStreamFailures: false,
       useRelativeCueTimestamps: false